【毕业论文】不同比例花生秧日粮对肉鹅生长性能和屠宰性能的影响.docVIP

不同比例花生秧日粮对肉鹅生长性能和屠宰性能的影响 2 - 精品 摘要 为了研究不同比例花生秧日粮对肉鹅的生产性能和屠宰性能的影响，以90只健康、体重均一鹅只进行试验，试验随机分为3组，每组3个重复，每个重复10只鹅，试验为期8周，以重复为单位，测定鹅只的体重、耗料和料重比等生长性能指标，饲养试验结束进行屠宰试验，测定屠宰率、全（半）净膛率、胸肌率、腿肌率等屠宰性能指标。试验结果表明： 肉鹅在2-4周龄随着花生秧添加量的增加，花生秧的日增重、日采食量均呈现出下降的趋势,料重比呈现出上升的趋势，其添加量为3.5%组的日增重最高（p0.05），料重比最低（p0.05）；添加3.5%组日采食量极显著高于添加量为24.62%组（p0.01）。肉鹅在5-8周龄，日增重呈现出下降的趋势，日采食量和料重比均呈现先下降后上升的趋势。添加量为10%组的日增重和日采食量均最高（p0.05）；添加量23.5%的料重比最低（p0.05）。随着花生秧添加量的增加，屠宰率、半净膛率、全净膛率及胸肌率均呈现先上升后下降的趋势。中间添加量组最高（P0.05）。腿肌率呈现上升的趋势。高纤维花生秧组的腿肌率最高（P0.05）。腹脂率呈现先下降后上升的趋势。高纤维花生秧组的腹脂率最高（P0.05）。花生秧对屠宰率、半净膛率、全净膛率、胸肌率、腿肌率和腹脂率影响均不大。结论：在饲粮代谢能和粗蛋白水平相同的条件下，肉鹅在2-4周龄，花生秧其适宜添加量为3.5%。肉鹅在5-8周龄，花生秧为纤维源其适宜添加量为23.5%。 关键词：花生秧； HYPERLINK /WebForms/WebDefines.aspx?searchword=%e8%82%89%e9%b9%85 \t _blank 肉鹅；生产性能；屠宰性能 Abstract In order to study the proportion of peanut seedlings of different diets on growth performance and slaughter geese performance, To 90 healthy, weight uniformity trial geese, test randomly divided into 3 groups, each 3 replicates, each of 10 geese, a period of 8 weeks.To repeat as a unit of geese measured body weight, feed consumption and feed ratio of the growth performance, the end of feeding trial were slaughtered tests as dressing percentage, total (half) eviscerated percentage, dressing percentage, leg muscle ratio, slaughter performance indicators. The results showed that: Geese in the 2-4 weeks of age with the addition of peanut seedlings increased seedling peanut daily gain feed intake showed a downward trend, feed conversion ratio showed an upward trend, the dosage of 3.5% in group The highest average daily gain (p 0.05), feed than the minimum；Add the food intake of 3.5% group was significantly higher than the dosage of 24.62% group (p 0.01). Geese in the 5-8 weeks of age, daily weight gain showed a downward trend, daily feed intake and feed conversion ratio were decreased first and then increased. Amount is 10% group of the highest daily gain and daily feed intake (p 0.05); addition of 23.5% of the feed weight rat